Model No. WG14432B
►Graphic LCD 144x32
►Type: Graphic
►Structure: COB
►Size: 2.44"
►IC: ST7920
►+5V power supply
►Internal boost option
►1/32 duty cycle
►LED can be driven by PIN15, PIN16 or A, K
►Chinese version
►Same size as WH1602B
►Interface: 6800/SPI
WG14432B is a monochrome 144x32 graphic LCD module featuring a COB (Chip on Board) structure with an integrated PCB. It shares the same outline dimensions and pin configuration as the WH1602B character LCD, allowing easy integration or replacement. The module offers a 2.44-inch diagonal active display area.
This model is built with the ST7920 controller IC and supports both 6800 8-bit parallel and 4-line SPI serial interfaces. The standard operating voltage is +5V, and an internal voltage booster is optionally available for +3.3V systems.
WG14432B includes built-in font libraries for Traditional Chinese, Simplified Chinese, and Japanese, making it suitable for multilingual display applications. It is designed to operate in temperatures ranging from -20℃ to +70℃, with a storage temperature range of -30℃ to +80℃.
| Item | Dimension | Unit |
|---|---|---|
| Number of dots | 144 x 32 | － |
| Module dimension | 80.0 x 36.0 x 13.2 (MAX) | mm |
| View area | 66.0 x 16.0 | mm |
| Active area | 60.44 x 13.4 | mm |
| Dot size | 0.38 x 0.38 | mm |
| Dot pitch | 0.42 x 0.42 | mm |
| Duty | 1/32 | |
| Backlight Type | LED | |
| IC | ST7920 | |
| Interface | 6800 | |
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature | TOP | -20 | － | +70 | ℃ |
| Storage Temperature | TST | -30 | － | +80 | ℃ |
| Input Voltage | VIN | -0.3 | － | VDD+0.3 | V |
| Supply Voltage For Logic | VDD-VSS | -0.3 | － | 5.5 | V |
| Supply Voltage For LCD | VO-VSS | 0 | － | 7.0 | V |
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage For Logic | VDD-VSS | － | 4.5 | 5.0 | 5.5 | V |
| Supply Voltage For LCD | V0-VSS | Ta=-20℃ Ta=25℃ Ta=70℃ |
－ |
－ － － |
－ － － |
V V V |
| Input High Volt. | VIH | － | 0.7VDD | － | VDD | V |
| Input Low Volt. | VIL | － | -0.3 | － | 0.6 | V |
| Output High Volt. | VOH | － | 0.8VDD | － | VDD | V |
| Output Low Volt. | VOL | － | － | － | 0.4 | V |
| Supply Current | IDD | VDD=5.0V | 2.0 | 2.5 | 3.5 | mA |
| Pin No. | Symbol | Level | Description |
|---|---|---|---|
| 1 | VSS | 0V | GND |
| 2 | VDD | 5.0V | Power Supply (+5V) |
| 3 | VO | No connection | |
| 4 | RS | H/L | H/L register select signal |
| 5 | R/W | H/L | H/L Read/Write signal |
| 6 | E | H/L | Enable signal |
| 7 | DB0 | H/L | Data bus line |
| 8 | DB1 | H/L | Data bus line |
| 9 | DB2 | H/L | Data bus line |
| 10 | DB3 | H/L | Data bus line |
| 11 | DB4 | H/L | Data bus line |
| 12 | DB5 | H/L | Data bus line |
| 13 | DB6 | H/L | Data bus line |
| 14 | DB7 | H/L | Data bus line |
| 15 | A | － | LED+ |
| 16 | K | － | LED- |
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